Rotary motor and pump



March 21, 1939. F, M. NORDLING ROTARY MOTOR AND PUMP Filed May 9, 1938 2Sheets-Sheet l 4 f/r 5 2 w 8 f Hm w Z M l.. M Nw h 1I W 110m Z www# W..l 0 HHI| Z ,V// Z l NM1 ///V 0 4 u mgw/ L N M 1 W 1 W MHH W//W /v I 6www0 w om/ Y -,W ,ff/Ma, M M

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/raa MAQ/faam@ BY' WM ATTORNEY.

March 21, 1939. F. M. NORDLING ROTARY MOTOR AND PUMP Filed May 9, 1938 2Sheets-Sheet 2 INVENTOR. /Pzf//y ATTORNEY.

Patented Mar. 21, 1939 UNITED STATES PATENT oEFlcE 3 Claims.

This invention relates to arotary engine or pump. If the device issupplied with pressure ,from the exterior, such as with steam, air, orwater. it will operate as an engine to deliver 5 power. If driven froman outside source of power it will operate as a pump or compressortopump air, water or other fluid. t v

The. principal object of the invention -is to provide a constructionhaving val ,minimum of parts which will deliver a constant, smooth flowof power as an engine, or a constant, smooth iiow oi fluid as a pump.

Other objects of theinvention are to eliminate all reciprocating partsand to employ in their stead rotary elements so as to eliminate unevenpower delivery and vibration; and to provide a construction in whichleakage past a piston or vane Vwill be absorbed by another piston orvane so that the eiciency will not be seriously affected.

Other objects and advantages reside in the de-v tail construction of'the invention, which is` designed for simplicity, economy, andeiliciency.4

'I'hese will become moreapparent from the following description. I 25 Inthe following detailed description of the invention reference is had tothe accompanying drawings which form a part hereof. Like numeralsrefertolike parts in all vlewsof the drawings and throughout the description.'

In the drawings: Fig. lis a vertical section through the improvedengineor pump, taken on the line I-I, Fig. 4. Fig. 2 is a similar section,taken in the line 2 2, Fig. 4, illustrating a side view ofthe rotor.'

Fig. 3 is a similar section, taken on the line 3 3, Fig. 4,illustrating'the inner face of oneof the face plates ofthe rotorhousing. In this view the position of the cam groove in the oppositeplate is illustrated in broken line.

Fig. 4 is a cross section taken on the line 4 4,

.Figl 1.

Fig. 5 is a detail, perspective view illustrating one of the rotor vanesin position in the rotor. 45 The invention will be herein described foruse as an engine, it being understood that it is equally valuable foruse as a pulley or compressor.

The invention employes a cylindrical housing I0, preferably formed witha suitable supporting base II. The faces of the housing I are closed bymeans of face plates I2 and I3, both of which are provided withsuitable. concentric bearings for mounting a rotor shaft I4 whichprojects through the face plate I3 to receive any suitable 55 pulley. v

A circular rotor I is keyed or otherwise secured to the shaft I4 withinthe housing I0.

'I'he rotor I5 is preferably formed with a side flange I'I at one sideand carries a ange ring I l', secured by `rneans of .suitable screws 29,at 5 the other side which together form the sides of -a peripheralchannel I6. Ii desired both side flanges may be cast as an integral partof the rotor or both may be formed as removable rings as desired. 1g,

A series of laterally-positioned, semi-cylindrical vanes I8 extendacross the channel I6. Each end of eachv vane is circular and thecircular ends rotate in bearing openings I9 in the side anges I1 and I'I'. The vanes rest in laterally-extend- 15 ing, semi-cylindricalgrooves .20 across the bottom of the channel I6. 'I'he housing I0 isgrooved at each face for the reception of the side flanges II and I'I'.The length of each vane corresponds to thewidth of thev rotor so thattheir extremities will provide a smooth flush surface at each face ofthe rotor.

A stud 2l projects from each extremity of each vane. The studs in eachlvane are positioned diametrically opposite each other and each travelsin a/guide groove 22 formed in one of the face plates I2 and I3. Due tothe opposite position of the pins 2 I, the guide grooves 22 do notcorrespond with each other in position but are arranged, as shown inFig. 3, so as the rotor rotates one pin. will be forced away from theaxis While the other will be forced toward the axis to impart a 90 turnto the rotor. i

The housing III is formed .with one or more inlet ports 23 and acorresponding number of 35 outlet ports 24 depending upon the size ofthe particular engine.l As illustrated, there are two inlet ports 23 andtwo outlet ports 24. Each port has a lip 25 which projects inwardly intothe channel I6 of the rotor into close proximity with the bottom of thechannel. The guide grooves ,arearranged so that, as each vane I8 passesthe lip 25 of an inlet port, it will be rotated 90 to place its flatface laterally of the channel I6 so vas to close'the channel and form apiston against 45 which the incoming pressure acts. As each vaneapproaches the lip 25 of the outlet port 424, the guide grooves act torotate the vanes back to their former position with the flat face 3 inalignment with the bottom of the channel I6, to allow the vanes to passthe lips.

It will be noted that there are a plurality of vanes in the pressurestream'from each inlet to each outlet. The rst vane receives the directpressure from the inlet.v The remaining vanes receivevpressure due toany leakage which may occur past the proceeding vanes. This constructionmakes it unnecessary for the vanes to have an absolutely tight seal withthe inner wall ofv the rotor housing since all pressure which would belost by leakage is absorbed by the preceding vanes in the pressurestream.

'l'he vanes are laterally slidable in the rotor so that they may beeasily slid to or from place by simply removing one of the face -platesI3. It is preferred to place a door section 2| in one o! the face plateswhich may be bolted thereto by means of suitable bolts 21. This doorsection carries a continuation of the guide groove 22 and by simplyremoving the bolts 21 and rotating the Irotor to bring the successivevanes into position opposite the door, the latter may be withdrawn andreplaced without removing the face plates I2 and It can be readily seenthat by applying power to the shaft Il and rotating it in eitherdirection the device will be caused to act as a pump to pass air orfluids from one set of ports to the opposite set of ports. As a pump itwill operate in either direction but it is preferred to drive with theflat vane faces forward.

While the inventihn has been illustrated with four ports and with eightvanes, it is of course possible to build it in any size and with anydesired number of ports and vanes around its periphery.

While a specific form of the improvement has been described andillustrated herein, it is desired to be understood that the same may bevaried, within the scope of the appended claims, without departing fromvthe spirit of the invention.

Having thus described the invention, what is claimed and desired securedby Letters Patent is:-

l. A rotor for rotary motors comprising: a cylindrical rotor member; aperipheral channel ex- `fendlng around the cylindrical face of saidmember with its bottom parallel to the axis of said rotor;semi-cylindrical grooves extending across said channel at spaced-apartintervals, said grooves terminating in circular bearing openings at eachside of said channel; cylindrical vanes extending from side to side ofsaid rotor through said bearing openings and lying in said grooves, themidportions of said vanes being cut away to correspond with thecross-sectional outline of said channel; and means for successivelyimparting partial rotation to said vanes to turn the nat sides thereofalternately first lateral of said channel thence flush with the bottomthereof.

2. A rotor for rotary motors comprising: a cylindrical rotor member; aperipheral channel extending around the cylindrical face of said memberwith its bottom parallel to the axis of said rotor; semi-cylindricalgrooves extending across said channel at spaced-apart intervals, saidgrooves lterminating in circular bearing openings at each side of saidchannel; cylindrical vanes extending from side to side of said rotorthrough said bearing openings and lying in said grooves, the midportionsof said vanes being cut away to correspond with the cross-sectionaloutline of said channel; means for successively imparting partialrotation to said vanes to turn the flat sides thereof alternately ilrstlateral of said channel thence flush with the bottom thereof; an intakeport at one side of said rotor; an outlet port at the other sidethereof; and a lip extending inwardly into the channel of said rotoradjacent each port.

3. In a rotary motor, of the type having a cylindrical housing closed ateach face by means of a face plate having a concentric bearing and aconcentric shaft supported in said bearings, a circular rotor blockmounted on said shaft of a width to flt snugly between said face platessaid rotor block being of less diameter than said housing; a peripheralflange at each side of said rotor extending outwardly the full diameterof said housing; said flanges fitting snugly against said face plates;cylindrical vane channels extending through both flanges and across saidchannel at spaced-apart intervals and being of uniform diameterthroughout their length the axis of each channel lying in the plan ofthe circumference of said rotor; a cylindrical vane in each channel,said vanes equaling the width of said rotor in length so that theirextremities will lie snugly against the inner faces of said face plates,said vanes being of uniform diameter throughout their lengths so thatthey may be withdrawn through said flanges and being cut away forone-half their diameter between said flanges; inlet and outlet passagesopening through said housing to said channel; `an abutment projectinginward from said housing and vclosing said channel between said inletand outlet passages; an edcentrically positioned pin in each extremityof each vane; and an eccentric cam track in the inner face of each faceplate for receiving said pins and acting to rotate said vanes as saidrotor rotates.

FRED M. NORDLING.

